Characterization of proteins from kernel of different soybean varieties.

Background: Total soybean proteins, storage proteins, glycinin (11S) and β-conglycinin (7S) fractions and their respective subunits in seven soybean varieties were analyzed. In this work we also present the correlation between concentration and activity of bioactive proteins, lipoxygenase and proteinase inhibitors.

Results: Glycinin and β-conglycinin comprise about 750 g kg(-1) of the bean storage protein and as such account for both quantity and quality of the kernel protein.